#sibling-rivalry

A teenage girl, aroused by overhearing her older sister's sexual exploits, sneaks a peek and decides she must experience sex for herself.

A self-conscious college-bound athlete endures an embarrassing physical examination that highlights her insecurities about her body.

A teenage girl and her younger sister find themselves stuck at home with her boyfriend on a stormy night, where sibling jealousy and curiosity simmer into budding desire.

A teenage boy living with his bratty stepsister wrestles with desire after she catches him masturbating to porn.

Lucy continues exploring her newfound sexual freedom after sleeping with her sister Mary's boyfriend, leading to a heated confrontation between the sisters.

A man faces a furious teenage sister who demands he sleep with her or she'll report him for abusing her younger sister.

A man manipulates a teenage girl into dominating her older sister after a babysitting incident escalates into control games.

A 22-year-old man fixates on his girlfriend's 15-year-old sister while growing bored of their relationship, setting the stage for taboo encounters.

A teen boy's crush sneaks into her brother's room at night to seduce him, but the brother is sleeping just feet away.

Scott blackmails his brother Lee into revealing details of his affair, then seeks out the same woman himself using the leverage gained.

A teen boy navigates a complicated situation with a girl whose sister's earlier interference left him conflicted about losing his virginity to her.

A teen with the power to take over others' bodies continues his sexual escapades when his slutty older sister and her boyfriend arrive home.

A woman rushes home to spend time with her boyfriend before meeting her younger sister, leading to sexual encounters with both.

A teenage girl recounts a slow, reluctant descent into sexual experience, framed against a lifelong rivalry with her older sister.

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.

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.

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

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