Janus Rain

Troy Martindale is a CIA spook and your everyday all American boy -- blonde, handsome, played football in college, did a tour of service in the military, and finally landed a job in the deep state. He's got his eye on Jefe Marco, a notorious drug kingpin in Mexico, but the man is notoriously guarded, paranoid, and well connected. A colleague in the service comes to Troy with a wild, dangerous plan to bag the drug lord -- taking a serum that will change him into a latina woman and infiltrating his birthday party.
All seems to be going well, until Marco himself takes a liking to 'Raquel' and pulls him into his lap for a little fun. Troy returns to America planning on celebrating his success, but he feels achy and lethargic, and his body keeps gaining Raquel's hips or hair. Turns out the drug lord left a little gift in 'Raquel's' belly, and Troy's still carrying it.