He would begin stroking his own member jealously while his friend was getting the blowjob of a lifetime. Then he remembered what the ancient Alolan's used to say, that a Pyuku's mouth and anus could were pretty much interchangable. With this knowledge, he went over to his orgasming friend and grabbed the other end of the Pyuku, and thrusted his hardened member inside. This end had a lot more of the slimy intestines compared to its mouth, which meant a lot more resistance, but through sheer determination he squeezed through it in a single thrust. The youngster and his friend gasped as both their penises met and touched inside the Pyuku's body, covered in the now warm, caressing and stimulating innards. The two friends momentarily woke from their incredible ecstasy and looked in each others eyes. They then kissed passionately, their tounges invading each others mouths as the Pyuku's stimulations intensified. The two friends gripped the Pyuku harder, thrusting and thrusting, their prepubescent penises swollen to adult sizes, not clashing head on with each other, but sliding against each other inside the Pokemon. At last they couldn't handle it anymore and with one final thrust from each they leaned and came together while the Pyuku's innards gave one final squeeze. Slowly, those innards relaxed and massaged their penises, letting all the cum flow out as their dicks deflated. The two friends lay down on the sandy beach, the Alolan sun's glaring down on them with its warmth. The Pyuku, tired from all the exertion, fell asleep, making soft cooing noises accompanied by a slight gurgling of semen. As per Alolan tradition, the two boys carried the now slightly heavier Pyuku and threw it into water, letting the waves take it away.
The two friends then washed themselves in the sea, and went home, knowing that the Pyuku would return and would be waiting in the same spot.