"Well, um..." Jessie blushed, as if flustered by the prospect of all this. "Would you be OK with me... well..." Her voice trailed off and she shifted her cock downwards a little to indicate what she felt too shy to say.
"Yeah, that'd be nice!" Ty reassured her. "As long as you don't get dysphoric from it, I mean."
"It's like the one time I don't get dysphoric about this thing," Jessie laughed. Ty felt a bit sad for her, and leaned up to kiss the other girl.
"Let's do this, then," Ty smiled.
Jessie nodded in agreement, and pushed her hips against Ty's. Ty breathed in deeply as she felt Jessie's head press against her moist lips and then open her up, gripping her lover's hands as Jessie began to fuck her. Slowly her hips pulled away, and then thrust back in, and slowly she developed a rhythmic pattern to her motions, allowing herself to forget her insecurities about gender and just focus on making herself and Ty feel good.
Almost as intoxicating to Ty as Jessie's motions were her expression. She could tell the girl was in heaven fucking her- her concentrated expression and lip bitten to muffle her moans, her breasts bouncing with every thrust and adding to her pleasure, and her hands tightly gripping Ty's wrists to hold her steady. (Which her? At this point, probably both of them.)
Ty managed to get one hand free and used it to reach up to Jessie's breast, cupping the soft mound and pinching her nipple. She moaned cutely and Ty felt her shaft twitch inside her. "Keep fucking me, that's a good girl," Ty encouraged her, and Jessie almost seemed to speed up her thrusts, making Ty's body shake under her as she got fucked faster and faster.
As their peaks approached, Ty wrapped her legs around the back of the girl fucking her, and any hesitation Jessie still felt just vanished. She pounded in and out of Ty, following the instincts her penis gave her, the touch of the other girl's warm skin on hers making it wonderful beyond words. Ty really wanted to encourage Jessie further, but by this point she was barely able to speak through her moans and whimpers of pleasure as she got railed by her lover's cock.
Once her orgasm took hold, Jessie pushed Ty into a mating press, her chest and hips pressing against Ty's firmly as they both felt her warm cum splurt inside Ty. The two girls gasped for breath, looked at each other in a post-orgasmic haze, kissed and practically collapsed into each other's arms.
"That was amazing," Ty said at last.