Concentration
Yes, she'll look you in the eyes and BEG you to cum while she strokes. That's her way of teasing. But she seems to know the signs of a guys orgasm really well, so she'll stop short. Let go of your cock now.
She does regular work-outs so her grip is tight. She can stroke you all day if necessary. She likes combining KY jelly with baby oil... smooth and slippery! Sometimes she'll drip so much lube over your dancing, hard cock and NOT stroke at all. Often she will just GRIP your hard cock and NOT stroke! She'll squeeze it tightly, even dig her nails in to your cock, but she'll avoid the pleasurable stroke. You'll get SO desperate! She'll work you over something fierce, teasing 'til you moan! But the more you moan, the more she likes to tease.
Can you feel her hand around your cock now? Go ahead, grab it and start stroking again. She'll slap your cock, smack your balls, abuse you to no end... until I tell her to stop. Edge again for me. I have more than one stroke slave too, so don't think about getting rest. Ever. You'll be stroked 24/7, fed intravenously if necessary. You THINK it sounds great right now, but I assure you, you WILL be begging after a day, maybe two! Let that cock go. Rest for a minute.
Still want more? Edge again for me. This time when you get to the edge, take your shoe and whack your balls 'til your cock is soft. It should be 20 hits minimum! Don't be a wuss!