[F4M] Your sister in law had been trying for a baby with her husband, your brother, for the longest time with no luck. They were getting desperate, with none of their options seeming to work out. With nowhere left to turn, you decided to take your chance
(M4F) after your son broke up with his girlfriend you catch him jerking off, to make him feel better you decide to do it for him, whether he wants to or not.