[MM] [MF] Sharing my best friend with my mum [first time bi] [cuckold/humiliation themes] [basically super fucked up]

This happened when I was 17, and unlocked me sexually as a person – I discovered how much betrayal turned me on and that I was partially bisexual/very submissive.

I was on holiday/vacation – just a week in a Spain, my grandparents had bought a Villa as a project to improve and sell on (something they did a lot) and we’d usually get a free holiday out of it. I’d gone with my best friend “D” and both our mums, we were close as families and had been friends for over 12 years at this point.

A quick overview of everyone involved –

Me and mum look pretty similar, both short and blonde, I’m naturally pretty skinny but toned and athletic, mum on the other hand is just plain skinny, no curves and a little underweight. She was 41 (I think?) at the time. We’re both cute, not ugly by any stretch.

D was tall, I think 6’3 and whilst he wasn’t toned like me he was built like a man at 18 – a slab of a chest forming already and quite a hairy guy. Him and his mum are both dark haired. They’re both pretty average looking, but Ds mum is quite overweight.