Warm Up [ImmortalFox Smut One Shot]

Submit prompts to: PretendPuzzle.tumblr.com, ChaosAndIsa.tumblr.com or threw a message here!
Anon:Imagine Person A of your OTP complaining about how cold they are. Person B suggests they curl up by the fire place with a big fluffy blanket. After a few moments of doing so, Person B begins to kiss Person A’s neck and bite them a few times. After Person A gets flustered and asks what Person B is doing, Person B says they’re warming Person A up. (Bonus if it leads to steamy sex.) And can this be immortalfox, pwease?