It started out as a little playful nibbling, licking, tickling, and teasing, but when I said, "Okay, time for bed!" she closed her thighs on my head and said, "No, it's not."
My Wife presented me this as I came out of the shower and asked me to tongue-tease her until she asked to cum. Then, after about 20 minutes of edging, she squirted on my face.
