As David sits down, David's backpack hits her huge leg and his hand touches her butt. David is squeezed between the 2 women and is pushing more against the Mexican lady.
She takes this as him trying to play with her / hit on her. She looks down at him and puts her arm around him.
"So you like me do you?" She looks down at him squeezing and rubbing his arm, almost rubbing his chest.
David looks up speechless, "im sorry if I got to close mama," David still trying to stay polite.
"Mama? Please call me Rosah, and you should watch where you put you hands and legs while next to a big girl. Unless you like them big!!!"
David blushes and looks down quietly and quickly.
"Ah so you like them big huh, can I tell you something." She leans down and whisper in his ear, "I weigh 832 lbs, how's that turn you on perv."
She then moves her leg onto his, and can feel his dick poking at her. "Ow someone's excited, i think I know exactly what to do with you."