eleven to thirteen years old. Around that time, S.A. started developing breasts and S.A. testified that once she developed breasts, [Appellant] would, underneath her clothing, touch her breasts with his hands and orally lick them. . . . S.A. and E.B. met in sixth grade at school and became best friends. When S.A. and E.B. were in eighth or ninth grade, E.B. started going to [Appellant]'s mothers' house in Lower Burrell with S.A. and L.A. . . .
***
In early 2012, when S.A. was approximately sixteen years old, [Appellant] moved into his own apartment in Allegheny Township where S.A., L.A., and E.B. continued to visit. At that location, S.A. saw [Appellant] expose himself and masturbate in the kitchen in front of S.A. and E.B. Although S.A. was not aware because she was sleeping, E.B. told S.A. that, while S.A. was sleeping, [Appellant] was doing things to her. S.A. did not tell any adult about the sexual abuse until, in 2012, E.B. told her boyfriend and his family contacted the police. When S.A. became aware that the police had been notified, S.A. told her mother about the years of sexual abuse, although without E.B.'s disclosure, S.A. had no intention of telling anyone.
At Case Number 4748 C 2012, E.S. testified that S.A. and L.A. are her cousins and that she knows E.B. as S.A. and L.A.'s friend. In approximately 2007 or 2008, when E.S. was in fifth grade and about ten or eleven years old, [Appellant] would bring S.A., L.A., and E.B. to E.S.'s father's house in Natrona, PA. [Appellant], S.A., L.A., and E.B. would stay overnight at the house for a few days. E.S. stated that [Appellant] would invade her personal space and touch her in ways that she really didn't want him to in the house. Specifically, E.S. testified that [Appellant] would touch her chest and bottom area by grabbing her with his hands. Regarding [Appellant] touching her chest, E.S. stated that [Appellant] "would pick [her] up and spin [her], or he would grab [her] and not let [her] go." Most of the time, [Appellant] would touch her on top of her clothing, however, occasionally he would touch her underneath her clothing. . . .
E.S. testified that she saw [Appellant] do the same type of things to E.B. and S.A. In the house and on multiple occasions, E.S. saw [Appellant] touch E.B.'s chest underneath and on top of her
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clothing with his hand and saw [Appellant] touch E.B.'s butt and crotch on top of her clothing with his hand. . . . E.S. also saw [Appellant] grab S.A.'s chest during horseplay and when S.A. was sleeping. . . .
At Case Number 4747 C 2012, E.B. testified that she and S.A. became friends in sixth grade. During that school year, E.B. started sleeping over with S.A. at [Appellant's] mother['s] house in Lower Burrell. When E.B. was around twelve years old and she and S.A. were sleeping on an air mattress at the Lower Burrell house, [Appellant]