My step-uncle's perverted behavior shocks and scares me as he forces me to take it

My innocent teen stepmom and I were hanging out at her place when my pervy step uncle barged in, uninvited. He immediately began to devour my tiny twat and then my tight ass. The sight of him ravishing me in front of my stepmom was both thrilling and terrifying. His wild sexual energy pushed me to indulge in some intense doggystyle action.