Nighttime visit from the transcubus

You wake up in a dreamlike haze to some movement in your bed, dimly aware in the back of your mind that you're harder than you've ever been in your life... you don't remember being this pent up, but you feel like your balls have never been more full of cum than they are now. You feel movement to your left, and realize that you're not alone - it's the succubus you've dreamt of! She's here to milk every last drop out of you, and she's even equipped downstairs in just the way you've fantasized about too~ By morning, all that'll be left of her is your mingled cum all over your bed.