The scene start in Ultra Desert,a Pheromosa was walking,except that Pheromosa was different...it was a male.
Male Pheromosa don't have the eyelashes females have,the hair-like structure is shorter at the end of the ,,hair'' is look like it was feets like like the female except it don't have the heel-structures on the back.
This male looked uncomfortable of something...it was in his heat cycle,another problem is male Pheromosa can't breed with females one,who make it difficult to find a Ultra Desert exist another ,,Ultra Beast'' called Necrozma,but the problem is female Necrozmas are never seen,except for this day.
Pheromosa:Oh,man I never find a mate,ugh this heat cycle will kill me if I don't find a mate.
Pheromosa was walking through a narrow path,until he heard something,that seem like a then walk slowly until he see something that made his day...a female Necrozma.
Female Necrozma look like males except for having eyelashes on their eyes corners,the star symbol is replaced by a heart one,their chests are slighty bigger than the males and tip of their claws is pink.
Pheromosa was just sit behind a rock watching how the female was fingering her pussy and playing with breasts moaning,which cause Pheromosa penis to get erect.
Pheromosa:Probably if I talk with her I-no it sound weird like ,,Hey you want to mate with me?'',No.
Pheromosa then accidentaly cause a small rock to fall getting the Necrozma attention.
Pheromosa and Necrozma eyes were fixed at eachother,blushing.
Pheromosa:Hi,sorry for being an creep.
Necrozma:Oh,is not a problem!
Necrozma then fix her view on Pheromosa erect penis pulsating.
Necrozma:It look like you have the same problem like me.
Pheromosa:You are in heat?
Necrozma simply noded.
Necrozma:The problem is females Necrozma can't breed with males.
Pheromosa:Is the same problem like my species.
Pheromosa simply smiles at Necrozma and Necrozma smiles then pin Pheromosa against a rock.
Pheromosa:So you want to mate?
Necrozma:Yes,I see you have a big member.
Necrozma then slowly put Pheromosa shorts down to see a purple spearsphaped penis with then open her mouthguard to see a pair purple lips.
Pheromosa:I never know Necrozmas have mouths.
Necrozma:We keep our mouths always open,especially if you normally absorb light.
Necrozma then let her tounge out and start to lick her partner penis,which cause him to moan.
Pheromosa:Is the best sensation I ever had in my life!
Necrozma then put the entire penis in her mouth and start to suck.
Pheromosa:Oh~
Necrozma then start to suck faster and harder which make Pheromosa penis to get near to then grab Necrozma head and let her with penis in her mouth until he cums his beige seed in her mouth.
Pheromosa:That was so nice.
Necrozma:You want to continue dear~
Necrozma then shows her pussy lips full of her juices,Pheromosa then start to lick the sweet juice of his lover.
Necrozma:Oh,I'm near to edge!
Necrozma then squirt a lot of her juices on Pheromosa face who start to lick then put himself on his knees with his penis near to Necrozma pussy lips and then he insert slowly his member in his mate.
Necrozma:Oh,Pheromosa please more deep!
Pheromosa:If you want!
Pheromosa then thrust his penis in Necrozma,she the bit her lip due to the pain.
Pheromosa:I know it's very painfully,this is your first time?
Necrozma:If you count fingering?
Pheromosa:No.*laught*
Necrozma:Ok,yes my first time!*giggles*
Pheromosa then start to goes faster and faster.
Pheromosa:I'm very close.
Necrozma:My prince just fill me with your seed.
Pheromosa then spurt all his seed in Necrozma which when his penis get out some cum still drops from Necrozma pussy.
Pheromosa:Finally I get a mate to spend rest of my life with.
Necrozma:Darling,you make me blush.
After a few months
Necrozma and Pheromosa eggs was close to hatching.
Pheromosa:I can't wait for our little angel to hatch!
Necrozma:Me too!
The egg then crack,from the egg a little humanoid figure appear having some kind crystal like pigtail alongside with a white glass strcutures that look like a flower bulb,she has colorful eyes alongside with a small mouth.
Necrozma:Welcome in our lives,our little girl.
Pheromosa:How we should call this little lady?
Necrozma:How about Prisma?
Pheromosa:That is a beutiful name my dear.
Necrozma:Oh come on you make me blush.
Then Pheromosa kiss Necrozma on her lips,then they look at Prisma and smiles.