Mom's sweet neck-tar

You crawl into bed with stepmom after a nightmare. She says you can cuddle just don't wake stepsister who's resting next to stepmom. She encourages you to get on top for some cuddles. She says she caught you kissing stepsister's neck yesterday. She doesn't mind you "experimenting" but doesn't want you to get caught. You're both way young too. Do you like necks? Did it excite you to kiss stepsister's neck? Does stepmom's neck excite you? Stepmom lets you kiss her neck while you're on top of her. She feels a poke coming thru. She reaches under the sheets to adjust you, but makes you harder. She encourages you to keep playing with her neck while jerking you off. "Keep going honey, it's okay." Sis wakes up but stepmom says go back to rest. "One day sis will have a body just like stepmom but she's still developing." Stepmom pulls back covers to reveal sis's body. She places sis's hand on your cock. Your cock slides inside stepmom while she talks about little sis's developing body...