You jump in, during the middle

You think about jumping in during the middle of the act. The whole encounter has

you quite hard, and you can't wait to get your cock into her pussy. Just then, a thought

occurs to you.

You could jump in now, and try to make the twosome, a threesome. Or, on the other

hand, you could jump in and try to claim Jane all for yourself.

As you think about this, Jane suddenly looks up and notices you watching them. A look

of surprise crosses her face, then suddenly a devilish grin. You aren't sure what

Jane is thinking, but you better do something fast. From the sounds of it, Jane's

partner is about to finish soon.