Preview: Tinyurl.com/yaxsvzj9. Talk about a challenge! Dart_Tech bottoms to the very serious SFDom in this epic video. Dart_Tech wanted to see how far he could be pushed, and SFDom was the best person for the job. Dart_Tech is strapped into the 8020 chair, blindfolded and muzzled and the fun begins. SFDom hooks up some Estim and a duel set of Hitachi Wands and really cranks things up till Dart_Techs heart is about to beat out of his chest (as you get to see on the patient monitor). Dart_Tech looses track of how many times he cums. This is a very intense video with two very intense people involved.