#rivalry

Twin Marissa uses her hidden mind-control powers to steal her sister's football-star boyfriend before graduation.

A 16-year-old girl schemes to seduce one of her mother's older boyfriends while her mother is away.

A vampire master asserts dominance over his newly claimed pet while a rival vampire lord threatens to take him away.

A irreverent retelling of Cinderella revealing the supposedly 'ugly' family as gorgeous temptresses and the prince as well-endowed royalty.

After defeating the Flippers, the Lighting Bolt cheerleaders invade the rival locker room to claim their ritual sexual tribute of fisting and humiliation.

Liam navigates his secret affair with his mother while confronting his jealous sister Amy, who discovers their tryst.

A Full House fan fiction where Stephanie prepares for her first real date while teasing her sister D.J. about her own relationship.

Teen hero Kim Possible is magically bonded at the hip to her rival Bonnie, forcing them into intimate proximity as a film crew captures their every move.

An 'evil' twin sister embraces her bad-girl reputation while comparing herself to her virtuous identical sister.

A young man seeks revenge on Jo after being tricked into having sex with her underage sister.

An artist takes his model Loretta to lunch before a posing session, sensing tension between her and her cousin Jade.

Jealous twin sister Amy schemes to seduce her sibling's boyfriend while their parents are away for the weekend.

A teen's promiscuous life at Harper Valley continues with multiple partners including sisters, featuring frequent spontaneous encounters and escalating group activities.

Two high school girls share frustrations about graduation and school drama while one plots revenge on a rival.

A spurned teen discovers her boyfriend cheating and hatches a revenge plan while stuck at a hotel for her little sister's beauty pageant.

A teenage boy sneaks peeks at his older sister while she showers, indulging in forbidden familial voyeurism.

An 18-year-old college virgin watches his life pass by while his older brother steals the girl he had been eyeing.

A man at the Millennium Hotel enjoys a drug-fueled seduction by his girlfriend's sister Loretta while awaiting her arrival in an angel costume.

A young man juggles affairs with two sisters while their teenage mother remains oblivious to the escalating flirtations.

A precocious preteen narrator recounts her sexual awakening under the guidance of her older sister, who introduces her to various partners and experiences.