“Open your mouth!” you bark through gritted teeth. Startled, Sam obeys, opening her mouth as you jump onto the bed beside her. Her eyes widen when she realizes your intentions, but by then it’s too late as you point your throbbing cock at her pink tongue. With a groan you feel your balls tighten as you squirt a stream of your man juice into her mouth. Sam gags and immediately pulls back as you spurt again, making you paint a stream of white across her nose, just barely missing her eye.
You’re not sure if in the next moment you moved forward or if Sam’s head came back, but suddenly you gasp as you find half of your length buried in her mouth. Your hands instinctively wrap around the back of Sam’s head as you squirt into her wonderfully warm, wet hole, even if it wasn’t the hole that you wanted most. You feel your sister gag and mover her tongue against you, trying to push you out and you pause for a moment, enjoying the extra stimulation.
Deciding that you shouldn’t drag this out in case Sam remembers that your most sensitive man parts were within reach of her fists, you pull yourself out from her lips and plop down next to her on the bed. She gives you a glare, keeping her mouth tightly shut, before glancing around for a place to spit your load.
“You should probably swallow,” you murmur, not wanting to see your seed go anywhere but into your sister. She makes a noise of protest, wiping the cum off her nose as she shot daggers at you with her eyes.
“Well you can’t just spit it onto the bed; it’d stain it. And it might raise questions if it got over our clothes. You should swallow it; it’d be cleaner.” You’re really just rambling off excuses as they pop into your head at this point, but Sam does grudgingly consider your words before closing her eyes and swallowing. Then her eyes are open again and glaring at you.
“Sorry, about the head thing,” you murmur, suddenly aware of how she could now renege on her deal with you and/or kill you for touching her. “About the touching. I just couldn’t help myself.”
Sam remains dangerously silent for two more beats before she turns away from you.
“It wasn’t that bad.”
You’re not sure if she’s talking about the taste or the experience, but her words bring a smile to your face regardless.
“That doesn’t mean I liked it!” she adds hastily, punching you in the shoulder for emphasis. Her blow hurt, but as you rub your wound you realize that she could have punched you a lot harder.
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