I know you love my arse, I know you would love to worship it, be smothered underneath it and you're so close but so far!
I want to to jerk off for me, while I tell you about how big my arse is getting these days, and how I can make you do anything for me with just a shake of it... Who knows perhaps I will leave you so close but so far!

I use the phrasing around "jerking" in this clip, with the assumption you'll make a mess if I decide to let you go until completion, but I do't use any gendered language within this clip.