maybe he lost a game of poker. When he runs out of money, he offers to get his daughter so she can join them - and maybe play some strip poker with them.
So he talks to his daughter and asks her for a favour. If she could serve some drinks during the poker game, this would help him. But she should wear some hot clothes - the hotter (or less covering) the better. He promises her a raise in her pocket money (of course, she doesn't know that he is short on money)
The daughter is surprised, but not shocked. She enjoys walking around half naked or dressed in lingerie. And she could need the raise in pocket money. Also, Daddy gave her some liquor before, so she is already a little bit tipsy.
So now she serves some drinks, when Dad asks her, if she would join them in poker. She replies that she has no money, so Dad or one of the other guy suggests strip poker. If she wins, she gets money, if she looses, she drops her clothes.
She accepts, but after some games, she is totally nude (maybe the guys cheat). She has no problem with the nudity, but she still needs money. Suddenly, one of the guys makes an interesting offer: if you win, you get all my money (or at least $50). If you loose, I (and the other guys ?) get a blowjob.
She looses again. Now she is a little bit unsure, but tells her: you offered to give head, if you loose. You lost, so now get ready to suck some cock.
She has no real problem with blowjobs, so she unzips the guys pants and starts to suck his cock.
The other 3-4 guys (including her Dad) of course become horny, and so they start to touch her boobs and between her legs. One guy even starts to push his dick into her pussy from behind. Finally, the first guy cums into her mouth. When he pulls his dick out of her mouth, suddenly, Dad opens his pants and tells his daughter: now it's my turn to get a blowjob from you, sweet daughter ...
"We have done so much, with so little, for so long, that now we can do almost anything with nothing." - Dave Marcis