Now you're talking about it, yeah this genre was popular back then when around year 2000+ we had many good ntr visual novel from Elf, Complet's, LilimDarkness such as True Blue etc. But not much nowadays :(
Most of what happened in the 2000s was consensual.
Milk Junkies: Wataru has sex with his tutors and a foreigner
Milk Junkies 1 and 3: The lead has sex with the mother and daughter
Nami SOS: A waitress is used as a comfort woman for incubus and can exhaust them. It's implied that the incubus was physically exhausted from raping Nami and too intoxicated to notice that she can't feel anything.
*Women get stronger with each orgasm, men get weaker with each orgasm. It's possible she was raped for pretty much 30 minutes, or 14 if you count the run time.
*Wataru is the exception in that he has the strength and stamina to overpower three adult women!
