No

After you fail to answer for a full ten seconds, Rick just silently lets the tip of his cock enter your girlfriends beautiful, pink pussy. Seeing this helped you make your decision, and you manage to eek out: "Noo!". Your voice cracked, and you sounded like a prepubescent little boy. It sounded so weak, but it got their attention.

Rick: "Wait...what?" Rick thankfully paused with just the tip inside of Jennifer.

You clear your throat.

You: "I said...no...I don't want this."

Jen: "ohh...but...the game said."

You: "It's just...the game went too far, let's back up a little....please stop, Uncle Rick. I can't do this."

You look ridiculous. Sitting there next to them with your erect penis sticking straight up. You're clearly aroused beyond all imagination, but you just cant go through with letting your Uncle Rick take your girlfriend's virginity in front of you.

Rick: "Buddy, my tip is already inside. It's no big deal."

You: "I just...can't do it...please, Uncle Rick, please please stop..."

Rick seems to take pity upon you, and pulls out of Jen's pussy. The tip of his dick is thoroughly slick from their combined juices. Jen was clearly very excited for this.

Rick: "I don't understand you at all, buddy. But I'll do it for you, since you're my favorite nephew." he sighs as he fondles his ball sack.

Jen: "ugh...I don't get it either...why even play the game if we're not going to finish?"

You: "I'm so sorry, you guys. I thought I was okay with this but I..."

Rick: "I gotta say, this is the most I've ever been blue balled in my life..."

Jen: "Well....maybe we can try again tomorrow...? I was...really looking forward to this, Jake..."

You: "I don't think I'll ever be okay with you guys having sex...It's just too much. Maybe I'm old fashioned, but I think a girlfriend should only sleep with her boyfriend...."

Rick just shrugs his shoulders: "Whatever, man. I think you're a total prude. And I was so close to thinking you were a cool dude."

You: "Are you guys mad at me?"

Rick sighs: "I'm not mad...I'm just disappointed in you..."

Jen stands up next to Rick, they both look like they're electrified with sexual energy. Their bodies are flush, seemingly on edge, even. They've been wound tight by the events of this evening, only to be stopped at the last moment by you. Jen wraps her dainty little silky arms around Rick's muscular, hairy arm.

Jen: "Me too...I thought we talked about this...and you agreed..."

You: "Not to this. I never thought Uncle Rick would be involved..."

Rick: "What, you were gonna just come on my boat to fuck, by yourselves, in your cabin the whole time? And think I wouldn't notice? At least this way I'm not the third wheel here."

Jen: "Yeah...It's less awkward this way, if you think about it..."

Rick: "Exactly..."

You: "Sorry...I don't know what to say..."

A silence descends upon the lounge. The two of them are realizing that there is no convincing you, so the tension lowers just a little. Both Rick's cock and yours are receding to only semi-erect, and Jen's body seems a little less on edge.

Rick: "So...we´re already all naked, we´ve kissed, and I gave Jen oral. That was all fine?"

You: "Well...not exactly...I felt very uncomfortable when you were giving her oral sex...."

Rick: "So it's just sex you're against..."

You: "...well...yeah, of course..."

Rick: "....because...?"

You: "That would be cheating....it's not right..."

Rick: "ugh...can't say I'm not massively horny right now....but whatever. It's time I hit the hay anyway...see you guys tomorrow..."

You and Jen: "..night..."