Normalize practicing with your siblings. A little sister wanting to practice kissing with her big brother before she gets her first boyfriend. Her loving big brother saying of course, his cock already hard.
Starting slowly, just a quick peck or two, but it’s not long before his tongue is in her mouth, fighting for space. They’re in their underwear now, she’s sure it won’t go farther than this. He’s rubbing her bare legs, and touching her between them over her pretty little panties.
She didn’t plan on her brother being her first. It just sort of happened. They didn’t have a condom, but he promised to pull out. He didn’t. It’s still the best thing she’s ever felt