No, try to play it cool

Samantha doesn't notice but just carries on chatting to you while Katie giggles in your ear. you cant help feeling excited by Samantha's georgeous tits in front of you though and you are sure Samantha will notice your erection soon.

"You want Samantha to notice your cock?" she said. Before you could answer she had started rubbing her breasts hard up against your back, turning you on even more. You know Samantha will notice now, jou can't help but get hard feeling those ripe young breasts squashed against your back.