"In fact," he purrs, "I think one part of me really accepts your new form." He rubs his shaft against the crotch of your swimsuit, and you feel yourself start to become wet and your nipples perk up for the first time.
"I thought you just came," you laugh.
"I just came for a man," he teases. "I think I'm more than ready to go again with a woman."
You smile and figure you'll take his word for it. His hands peel your one-piece off you, and you both look at your new form in amazement. His semi-hard cock rubs against your moist pussy and you feel him grow hard against you. The contrast in feeling is odd- before it used to be arousing to you that his penis was so much bigger and more dominant than yours, now it's arousing that he has one and you don't. His hand cups your bare breast, and a surge of arousal mixed with gender euphoria races through you. You love that you have breasts after so long feeling kinda inadequate in feminine clothing without them.
He slides himself carefully inside you and you moan eagerly, amazed at how drastically different it feels to be fucked in this hole compared to your ass. Your body clings to him less tightly, but moistens around him, your body feeling perfectly suited to milk his cock and pleasure him. You love how it feels to be so irrefutably female in this new form, your new parts feeling more pleasurable than your small cock ever could.
Pretty soon you both get to your peaks. He pants and moans as he pounds you, his balls slapping your body with every thrust, whispering a new name for you into your ear. "Ellen," he breathes, "Ellen... I'm gonna..." Everything he does serves to remind you of your feminization and you love it, especially the thought of how his cum is gonna fill your new body.
The moment you feel Damon's seed touch your new vagina, you cum hard, your passage spasming around him and your body clinging to him tightly. For the second time in as many hours, his cum has filled one of your holes.
This time, you both feel exhausted and cuddle up comfortably in the water.