Guys don't.
Just don't.
Absolutely don't.
Imagine your OTP on a picnic together. Person B lies on the grass, staring up at the clouds while Person A scolds them for being lazy.
Person B ignores A and closes their eyes. After a while, A is convinced B is asleep.
A gets on their knees right next to B and begins to lean into them, not able to resist. They kiss B on the lips, only for B's eyes to immediately shoot open as they smirk, having been awake the whole time.
The rest of the picnic is A curled up into a ball, embarrassed, and constantly apologizing while B attempts to assure them they're not mad.
DON'T you DARE imagine that.