I find this is actually the case for a lot of introverts (but not all). They are quite chatty once they get comfortable. I am an ENFJ so I am born to make people all warm, fuzzy and comfy It works out well with me and you introverts.
You can crawl into their lap and they happily cradle you in their arms, cover you with a blanket and let you fall asleep while watching Monday Night Football and typing a report for work.
I like to rock n' roll all night and *part* of every day. I usually have errands... I can only rock from like 1-3.