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Title and description amended to comply with the new TOS- 'step'. Step-Mommy has been secretly giving you boner pills for a while. Tricking you into thinking you're the hardest you have ever been because of Step-mommy. Your GF is out of town and Step-mommy is at it again, mixing the pill into your cup. But this time your boner is too much. You're in pain, swollen and in hurting. So you shout for Step-mommy. You don't know it, but Step-mommy has been waiting for this. She acts reluctant. But she's eager to help you. She strips, taking your cock in her mouth, teasing, slowly kissing, licking and sucking with her wet lips. It's making you even harder, you need to cum! So Step-mommy jumps on your cock, telling you not to cum inside her, riding you, grinding back and forth. She cums so hard she doesn't hear you tell her to stop, and she bounces until you fill her with your big wet load. You think it's over. Step-Mommy helped you this once. It won't happen again. But Step-mommy is manipulative. Gaslighting you. Telling you it's all your fault she's addicted, craving taboo cock like a perverted whore. And Step-mommy wears you down, you give into the shame and guilt. Never knowing the real truth, and what Step-mommy really did.