RNU-048 - Absolutely No Erection Allowed! Can You Hold Back While Your Girlfriend Gets Nailed? Amateur Couple AV Shoot 8-Hour DX

It's long, so I only skimmed through it, but the couples felt very staged. It basically follows a pattern: watching → erection → girlfriend sex → okay, next couple... It was filmed in a few different places like a regular hotel and a clinic. They act the part during sex, but there's one girl who doesn't make a sound and just lets it happen, maybe because she's shy. That's actually the highlight.