Hi Elle!
Oh dear, what a dilemma! Well you know, it’s important we learn to stick to the commitments we make… so I think the choice is clear, either you take your orgasm while at your cousin’s, or you have to wait until, New Year’s Eve I guess would be most appropriate.
Your challenge is to find somewhere discrete enough to enjoy it, I guess. Or you could leave it to fate, start off in bed, in what I assume is a shared room, and hope that you get to finish before you get interrupted. Because, well otherwise it’s going to be a LONG December…