"Is... is that my...?" you ask quietly, picking up on your now feminine voice.
"Well, it was, but now it's mine," the succubus replies, licking her lips. "So, you like it?"
Much as it pains you to say it, you honestly do. Just looking at your- well, HER- erect hardness makes you feel a little warm and tingly between your legs. It's a bit different to the feeling you used to get, but you can tell it's the same kind of response- your body is aroused, and it wants sex.
"Is this going to hurt?" you ask.
"No, it shouldn't. I gave you a non-virginal body, since you already gave up your maleness," the succubus explains.
Empowered by a little confidence, you spread your legs and say, "OK, let's do it."
Immediately, you feel her rub against your lips. The feelings are so much more intense than when you were a man, you sense every shift of your skin from the touch of her cock head, and as it slips inside you, it's warm and hard.
You exhale deeply as it thrusts all the way in, and out, again and again. Your sensitive, feminine walls try to squeeze around it, your body trying to hold her inside you with muscles you've only had for a few minutes.
As she makes your body respond to her thrusts, you feel your new breasts shake and swing with every motion, so much more sensitive than your chest was before. You moan aloud, reaching up with your hands to pinch your nipples, the intensity of the touch making you almost squeal.
As you begin to feel yourself reach your peak, you anxiously wrap your arms and legs around her, clinging on as you feel yourself shudder and clench her tightly, before finally feeling a welcome hotness from her cock as she shoots her seed inside you.