Write a long and lewd dialog between father and NAME_1. The NAME_1 (who is gay) put aphrodisiacs in his father's coffee. Pretending to massage is actually to groping all over the father, and constantly asking about gay sex knowledge. The father answered seriously at first, but then became horny and couldn't take it anymore, took the initiative to undress and asked his NAME_1 to have sex with him (he accepted to be the bottom).