When you feel another man's penis pulsing in your ass, you know that he's pumping all his seed deep into your willing submissive body where you both want it and know that it belongs in there.
This is how I want it to really feel the pulsating and the warm wet sperm filling up my cum bunn that magic moment you want to last twice as long and give you a chance to really enjoy being someone’s semen receptacle to make sure it all stays inside you
Be even better still if the man remsined inside the boy for awhile. Also to see the boy man's facial expresions/reactions during intercourse and orgasm.