Ask her to strip

"I would like you to strip." You say.

The vampiress raised an eyebrow at you for your request. "Really?"

"Really." You answered.

She shrugged and said "Alright then."

Doe casually pulled the left sleeve of her gown over her shoulder, and slowly peeled it off of her body. Then she did the same for the right. You looked wantingly at her as the purple fabric was taken off and her young pale skin was revealed.

When her sleeves were off, she held one of her pale arms across her chest. It's not like it would hide her breasts, they are still covered by her gown. But then, with her free arm, she pulled said gown down. Her boobs were now more visible then they were before, though her nipples were still hidden.

Once she was topless, she offered you a little smile and then turned her back at you. Next she placed both hands on her hips and pushed the gown further down. When the fabric was past her hips, it fell to the ground and she was left completely bare.

You walked up to Doe's pale body and placed your hands on her shoulders. Her skin felt cold. But then again, she was undead, so that was to be expected.

Both your hands went down her torso and cupped her pale breasts. They weren't too big, but also not too small. They were just right, cold as they were.

You let one hand slide further down, past her flat stomach, towards her crotch. There you found ... an erect cock?

"I see." You said. "So you're a hermaphrodite?"

Doe looked into your eyes and asked "Do you mind?"

"Not at all." You smiled at her. "I am a hermaphrodite myself."

This made your captives face light up.

"So, what do you want to do now?" She asked.