Hot brunette spreading naked to take a big cock in her tight pussy close up

I was fingering my GF and she asked my to do it with 2 fingers...then she asked me to do it with 3 fingers. She was soaking wet. Then she she asked me to do it with 4 fingers. I was like...dam...because I got kinda big hands. I got all 4 fingers in all the way up to my thumb. Without her asking, I got my thumb and 4 fingers in her and she starting cumming like crazy. Her pussy with pulsing and without trying, my whole fist slid it. She started bucking and cumming like crazy. I started freaking out because I never saw her cum like that. When I got my hand out...she just saying "fuck me, fuck me, fuck me"....so I did..hard and deep!