I thought there were none. I thought there were no bed-located tricks that were universal. I assumed that all humans, due to our unique-like-snowflake sexual preferences and genital configuration and kinks and quirks and loves: I thought there would be no universal Trick To Blow Their Mind In Bed.
But if there were one, and I’m not necessarily saying there is, then it might be this:
INT. BEDROOM. NIGHT.
GOTN enters the room having brushed her teeth, and done all the pre-sleep rituals she’ll usually do before settling down for the night.
BLOKE is lying in the bed, snuggled comfily under the duvet.
GOTN: Why are you on my side of the bed?
BLOKE: Oh, sorry.
BLOKE moves to other side of the bed.
GOTN: Do you want to sleep on my side?
BLOKE: No, no. I just forgot.
GOTN: I’m intrigued by this. Did you… did you just forget that was my side?
BLOKE: No. I just forgot to move over.
BLOKE: Well, when I get in the bed first, and you go to brush your teeth and whatnot, I lie on your side. Then when I hear you coming I move over to mine.
BLOKE: To warm up yours, so when you get in it’s not freezing.
GOTN: Do you do this every night?
BLOKE: Only in winter.
Consider my mind well and truly blown.