(Sorry if it's poorly worded or written, English is not my first language)
I would love to see something like that and it's easy, D2 is upstairs helping D1 who sucks F2's cock.
Taking advantage of the position a bit, F1 could be fucking D2 (not her daughter) and repeatedly the cock would come out and hit her daughter's pussy
D1: Dad be careful!!! you almost put it in me
F1: Sorry honey, it won't happen again
D2: Calm down 'girl's name' I'll keep it on me
*D2 takes F1's cock and puts it in D1's pussy, F1 doesn't notice*
D1: WTF DAD!! it's my pussy
F1: what? your friend did
D2: Come on 'girl's name' I know you want it (as he says it F1 pulls his dick out of D1's pussy)
D1: Yes... but, it's my dad... *short silence* I think it's not bad if it's just the tip for a short time
(D2 puts F1's cock back in D1's pussy)
*After a couple of minutes and dirty talk F1 pulls his dick out of D1*
D1: No, daddy, what are you doing?
F1: It was enough, we said little time
D1: No daddy fuck me please daddy I need it please
F1: This can't happen
D1: You're saying you don't like your daughter's little pussy (tearful voice)
F1: I... I didn't say that
*before finishing saying it, D2 takes F1's cock and puts it back in D1* (it would be incredible if it was an anal here, but that won't happen)
D2: Just fuck her, they both want it
D1: (screams with pleasure) Oh daddy fuck me hard, I want all your cock in me
Or something similarhttps://www.redgifs.com/watch/lonelyauthorizedgrouse