Birthday Party Humping and HandJobs

you and your mom are attending a friends birthday party and you have a boner and want mom to help you as she normally does, she tells you to wait but you can't and you both excuse yourselves to the restroom. stubborn you wants a plushie to hump and help, mom tries to talk you out of it and gives in making up an excuse to head to your friends bedroom. she grabs you a plushie and you notice mom has something hiding in her panties, its a small plushie. you both hump together until knocks interrupt you both, followed by two of your friends walking in on you both... Not sure what to do your mom gets creative and includes your friends and makes sure the door is locked this time having you and your friends cum in her mouth so you dont leave behind any messes.