Whether Fischer's testimony that the complainant did not perform oral sex on him prevented him from asserting a mistake-of-fact defense to IDSI.
Holding
No. Fischer's testimony did not itself foreclose the claimed defense.
Reasoning
The Commonwealth argued that Fischer could not claim a mistake about consent because he denied that the complainant performed oral sex on him during the second encounter. The court rejected that characterization of his testimony. Fischer admitted placing his penis at her mouth and testified that its head went halfway into her mouth before she closed her mouth and turned away.
reasoning
Because IDSI is complete upon even slight penetration, Fischer's own account admitted the physical element of the offense. His defense throughout trial was not that no sexual contact occurred, but that he reasonably understood the complainant to consent. Thus, his testimony did not make his mistake-of-fact theory legally unavailable.