First, she is one beautiful and sensual lady. I love her big tits and wonderful clit. I think the "accidental" cum is just because she had been turned on for a long time.
I guess we must have a different definition of premature!.....In my premature videos and favorites about 99% of the guys and tranny's cum in less than 1 minute from 1st touch or penetration!....In this video the tranny begins stroking and playing with herself at 1:08 and then cums 40 minutes later at 1:48:50.....40 minutes is definitely not premature in my book!