Too late

Whilst I was thinking of whether I should call for help, Tina, my black furred sister walked in, sniffing the air as she did. "Good lord, Kate. You smell really good," she commented as she crawled onto my king sized bed.

"What's happening to me?" I moaned.

"Oh you're in heat. Very much so. But I'll help you out," she answered as she started to run her hands against the outside of my legs which just confused my mind more.

"What? Fuck. How do I make it stop?" was all my mind could think of.

There was no hesitation in her response and I was completely oblivious to her intent. "Well, first we need to get you completely naked. It helps relieve the burning." As she said this, she proceeded to undress me, starting with my tank top. As soon as that was gone, it actually did ease my state of mind a lot by stopping the jolts of pleasure. From that point on, her word was fact. Despite her true intentions, she had been right. And my foggy brain took that to mean she knew what she was talking about.

Removing my shorts she took a moment to admire my body and carefully think of what to do next. "Then...I do this," she muttered and took my breasts in her hands which made me involentarily arch my back as a wave of bliss shot through me. Sensing I was about to moan loudly, she kissed me as she fondled me.

My moans weren't so muffled when she broke the kiss and soon she had to stop groping me so she could ruffle through my drawers for something to gag me with.