Sam, your friend

You spot Sam, one of your only friends, sitting alone at the back. As you walk down the isle Abby turns the vibe on medium. Taken by surprise you stumble and grab on to the nearest seat for balance. Determined not to hold up the line, you keep making your way back, stopping every few steps to grab your crotch in pleasure. Thankfully the vibe shuts off completely as you reach Sam. Silently cursing Abby, you approach him. "Mind if I siiiiiiiiiiiiii-" you suddenly get cut off as Abby turns the vibe up to maximum. "Oh fuck," you pant while falling to your knees. Then, as quickly as it started, it was done. You stand up and just sit down silently, without even finishing asking him if the seat is taken. Sam turns to you, a concerned look on his face. "Holy shit, Sarah! What was that?" "Uuhhh," you start to say when suddenly your phone dings. Thankful for time to think of an excuse, you check it