To sit on her lap while she runs both vibrators

"I dare you to sit on my lap, facing me, for a few minutes."

"Is that all?"

"Sure."

"Okay." Brandi straddled Stace, which had the effect of hiking her skirt up over her vibrating panties, and sat down facing her, which had the effect of putting Brandi's beautiful breasts on full display for her bisexual friend.

Stace grabbed her by the hips and pulled her a little closer while leaning back a little herself, until the vibrator in Brandi's panties and the vibrator stuffed into Stace's yoga pants were touching.

So when Stace turned the vibators on, Brandi's weight was already pushing them hard against their clits.

Stace started low, but Brandi could feel both vibrators going at once, with and additive effect. She groaned audibly and couldn't help but start rocking her body against Stace's.

"Yeah, that's right," Stace whispered, "feels good doesn't it." Her hands slide over Brandi's shirt, gently caressing her breasts through the material. Wordlessly, Brandi unbuttoned it for her and pulled it open, giving Stace full access to her pert breasts and rock-hard nipples.

Stace pinched a nipple with one hand while, with the other, she turned up intensity on the vibrators. First to medium, which got Brandi rocking harder, then to high which got her moaning and grunting.

Stace was in ecstasy as her own orgasm rose in tandem with her friends. She buried her face in her friends chest and licked and sucked at her nipples while the cloned vibrators drove them closer and closer to climax.

Brandi came first, grabbing her friend by the hair and sticking her tongue down her throat while her body rocked and spasmed. Stace started coming moments later, right when her straight friend kissed her on the mouth. Both of their orgasms, releasing the pent up energy of dozens of edgings throughout the night, were amazingly intense and long lasting.

When they finally subsided and the vibrators were turned off, they sat their, Brandi astride Stace, just breathing and holding each other.

Finally, Brandi spoke, "I'm not really into women, you know."

"I know, I know, I didn't mean to take advantage..."

"But..."

"But?"

"But that was hot as hell and twice as fun. I'm not going to, you know, date you or anything."

"Of course not, we're best friends..."

"But I wouldn't mind doing that again. You know, a friends with benefits kinda deal."

"And this," Stace said with a final squeeze of her friend's butt-cheek, "is why I love dare games."