Just as you turn back into your normal self reality snaps back a second and you're plunged back into the body of a busy lizard girl. You moan, your cock once again becoming a soaking wet lizard hole that aches for scaly cock. You quickly slide two fingers into your self and start whimpering.
"Oh shit," the alien says to you. "I guess I can't help you change back, and you're stuck looking like that forever. Well no problem..."
She taps a few buttons on her wrist thingy, and within seconds she has a massive lizard cock between her thighs, erect and dribbling pre-cum.
You can't even think as you take it in your mouth, your cunt tensing and jetting out juices as you cum all over the floor.