SHE wants me to lick cum!

I was travelling with my girlfriend Dirty_Davina... One or the other knows our actions already ... But what she demanded of me this time was just too blatant. She wanted me to lick the cum off her hand, which she had just taken out of her cunt because she had fucked around again before... Wrong! She wanted me to beg for it! OMG! I've never really done anything so humiliating...