you've explicitly asked him not to.
This has happened to me twice now. I've been on several dates with a guy, he asks or hints to come back to my place saying: 'I'll sleep on the sofa'
When I have let him back I make it clear 'No Sex' but after a kiss and cuddle all of a sudden his exposed knob appears.... and he asks: 'Please please touch it...'
This has happened to my twice now, two different men.
Both times I have refused and gone to bed thinking they've spoilt it. I like to get to know someone really well before I sleep with them and know we're in a relationship etc. I don't want quick hand jobs on my sofa and make that clear before they come back. So why do they do it?
Isn't it disrespectful to still try it on when you've been asked not to?