Time for yet another futa story from Sinful, this one anonymously requested. I'm not great at writing for DC, so please cut me a little slack for this one Kk?

Supergirl and Wonder Woman had spent a good chunk of the morning sparring at the JLA headquarters, and had had a pretty good time of it to. The two were fairly close at their max power, and were able to go all out without hurting each other too much and have fun doing it.

Afterwards, Kara had gone to the showers to wash up, and Diana decided she should probably join her and get washed up as well. What she hadn't know was that Kara had only gone to the showers at all because she though she was going to be alone, and wouldn't have gone if she'd known Diana was going to be following her.

Case and point, when Diana got to the showers, she found the door locked. It was odd she thought, the showers were only ever locked up after hours, as there wasn't much logic in locking up a shower room used by a large number of the facility. Diana could hear the showers on inside, so Kara was inside and showering, but why lock the doors?

Diana chuckled at the notion of Kara being embarrassed about being seen naked in the shower. She was mature, or at least, mature enough to not be bothered by something so trivial. Aside from that, she was Kryptonian, and hadn't been on Earth long enough to pick up their bizarre obsession with covering their bodies up, had she? The thought was amusing, but Diana knew it wasn't the case when she heard the soft moaning through the door.

Diana giggled to herself, grinning when she realized why Kara had closed the door. 'Wow, she really couldn't wait until she got back to her room?'

Diana decided to give Kara a little scare, teach her to keep her activities to her person space; and get her back for the cheap shots during their sparring. With Diana's strength, it wasn't hard to get the locked door open again, and quietly to so she was able to sneak in without alerting Kara of her presence.

Diana removed her clothes before heading into the actual showers, seeing a thick laying of steam wafting through it. She could see the silhouette of Kara near the wall, and could hear her moaning much more clearly now; only slightly drowned out by the wound of the hot water hitting the floor.

Diana crept over carefully, planning to make her presence known, tease Kara a bit, then get on with her shower, but she was frozen when she saw what Kara was doing. Diana had assumed Kara would be touching herself, and she was correct in that assumption; but she was shocked when she saw Kara stroking her erect member.

"Holy hell!" Diana was unable to hold back her stunned cry, which resulting in Kara nearly jumping through the roof in surprise. Kara turned on her heels, and all the color drained from her face upon seeing Diana staring at her. Kara immediately backed up against the wall, trying desperately to cover herself with her hands; which was made near impossible by the size. At fifteen inches, and still fully erect, Kara couldn't exactly keep it all covered.

"Kara.." Diana said softly, seeing the expression of shame and fear on Kara's face and seeing she wasn't just embarrassed about being seen like this, but ashamed. "You...you don't need to be so afraid." Diana said, stepping closer to Kara as she decided to dispel whatever fears Kara was having about herself.

"I really don't see why you were hiding this thing." Diana said, moving Kara's hands and grinning her hardened shaft, licking her lips as she looked over the massive size and decent girth, "Do you have any idea how many admirers you'd have if more people knew~?"

Diana began moving her hand slowly along Kara's member, marveling at how hard it was. It was already wet from the shower's water, so her hand slid along it easily. Kara moaned softly, gripping the wall. She still looked nervous, likely unused to having anyone know about her being a futa, let alone touch her.

"D-D-Diana.." Kara groaned, her rod already sensitive from her touching herself, and Diana's touch only adding to the building pressure. Diana smiled, getting on her knees and licking along Kara's tip, sending a shiver along her spine as the unfamiliar pleasure forced her to tense up. Diana smiled, taking the tip in her mouth and beginning to suck gently as she started moving her head down to take more.

Diana wasn't stupid, and knew there was no chance of her deep-throating Kara's monster of a cock, so she settled for taking as much as she could, which stopped at about seven inches, and using her hands to stroke the remaining five. Kara gasped out as she felt herself go over the edge, reaching her climax only a few moments later.

Diana was prepared for Kara to cum, but she hadn't been expecting so much; and it filled her mouth and spilled over onto her chest. Diana coughed slightly when she swallowed it all, but couldn't help it. Kara's cum was fucking delicious, and she couldn't help getting everything that had coated her chest; or at least as much as she could before the water washed it off.

Kara was panting, but was still hard as a rock. Diana smiled up at her, "You taste amazing~" She said with a wink, making Kara blush hard. "Th-thanks." She said awkwardly, unsure how to react. Diana giggled, and got up stroking Kara's still solid cock. "I really don't know why you were so worried about me seeing this," She said, lining Kara's member up to her slit, "You really should've told me sooner~"

Diana moved her hips forward, pushing Kara inside her and she moved her legs off the ground and locked them around Kara's waist. Kara was more than strong enough to hold Diana up, but still nearly dropped her at first; not expecting the pleasure that flooded her senses as her length was pushed inside Diana's pussy. Diana was in a similar state, with Kara's cock already being ten inches deep and still not down to the base.

Diana held onto Kara's shoulders and began moving her hips to try and push her even deeper, but couldn't do it herself. Kara's mind was nearly blank, but she managed to keep a hold of Diana's hips, and even began moving her hips with Diana's. With the two of them both moving their hips, Kara managed to hilt herself after a few minutes, by which point Diana was moaning loudly and had cum twice.

"S-so big!" Diana groaned, bucking her hips madly against Kara's cock. Kara could feel the pressure building up again, and knew she was going to cum soon. Instinctively, Kara grit her teeth and pressed her lips together to avoid making any noise. Hearing Diana's unrestrained cry of pleasure when she came, though, not only send Kara into her climax as well, but encouraged her to not hold back.

Kara cried out loudly as she came, filling her pussy with hot cum; causing her stomach to expand slightly as it was filled up. Kara collapsed on the group, Diana still in her lap. Both laid panting; holding each other. Kara smiled, not having ever imagined that it would feel this good. She looked up at Diana, seeing her eyes were slightly glazed over, and her tongue lulling out of her mouth. Kara grinned, deciding she wanted to see this face again, maybe not just on Diana.

And so ends the intro chapter. Please no flames yet, I'm just starting the story out K?