He checks to make sure there's no one around then pulls Ren up and grabs him by his thighs, wrapping them around his waist. He slips some tongue into the kiss
Cas pulls away, blushing a little
Cas: Tell me.
He bites Ren's lower lip hard
Cas grins
Cas: Tell me or I do it again.
Cas pries his hand away and bites his lip even harder than before