Note: I do not own the rights to Orphan Black and do not intend to make a profit off of it. Delphine has a dick in this story, don't read if you don't want.
Delphine Cormier was not like other girls. The curly-haired dirty blonde had always had a 5-inch dick and balls instead of a pussy as a trans woman. She never wanted to change the arrangement as it stood. She was not a fan of deadnaming and wanted people to see her as a beautiful woman. Cosima was the first girl loved for who she was, and she'd never change anything for Cosima, especially not her genitals. Cosima even noticed her get hard when they danced on their first date when she felt the blonde harden when they were grinding but she was perfectly okay with it.
Delphine never wished for a pussy once in her life and was happy she had a penis. She was thankful she could never get pregnant or have periods, but still felt perfectly female. She also loved playing with her dick a lot. For Delphine, her dick was a fun toy for her to play with when alone but her favorite thing to do it was to stick it into Cosima after eating the girl out.
She always found it embarrassing if someone found out other than Cosima, who loved her for who she is, or her doctor. In fact, Cosima was attracted to Delphine partially because of her dick, as she found it cute every time she got hard. Delphine trained herself to behave in public so she wouldn't get hard every item she saw someone attractive. People were generally too distracted by her accent to care when she got hard. To relieve herself, she jerks off quite frequently.