Buy an electric blanket and you'll never have the need to invite people to your room ever again. You can evolve into a fully fledged hermit.

[She's silent again for a moment, watching him. She could crack a good flirty joke about body heat yet she isn't really feeling it right now. What she is feeling however is the same thing she felt at the party; back when she was torn between running away and kissing him again. Yet this time, seeing as she's in his room and rolled up in a comforter-burrito with him, she figures he probably isn't going to yell at her for it.

So she tilts her head and leans in without any warning, kissing him.]