With his powers (option 2)

"If you don't stop, i'm tellinng mom!"

Matt smirked, then jumped into his mom's mind. She was standing in the kitchen again, cutting onions. Matt couldn't tell if the tears were from the onions or what she had just witnessed upstairs, but a quick scan of Helen's mind showed the tears were not from sadness.

She put the knife down and went to the refrigerator. She had heard Nate come downstairs, and he hadn't been in to get his post coital beer, so she got one and brought it to him in his study, where he had turned on the news. "Fucking politics," Nate growled, taking the beer from her hand without looking around. From his mom's memories, Matt realized there were only two things Nate cared about lately - politics and Lily''s pussy. Without a word, Matt turned and walked to the bottom of the stairs.

She walked quietly up the stairs, not wanting to make Nate suspicious, but not wanting the two upstairs to know she was on her way up either. She stood in front of the closed door for a moment before cracking it open and peering in. Matt saw his own body, moving as it had been before, his hands clasped around her ankles, pulling Lily's ass to the edge of the bed.

Right before Matt's body would hav thrust his cock inside his twin sister, Matt stepped into the room in his mom's body. "What's going on here?"

Lily looked at her, desperaation on her face. "Mom, please help! Matt's gone insane! He's trying to **** me!"

Matt's head turned toward Helen, and the moment their eyes locked, Matt felt a buzzing inside the mind he was currently inhabiting, almost like a low intensity feedback loop. It wasn't painful, but it was quite distracting. "You stop that right now," Matt said in his mom's voice. The words brought relief to Lily's face, which was replaced by confusion moments later as Matt continued "If you can fuck your father, you can fuck your brother," she continued. "Yes, I know you've been fucking Nate, just as I know you currently have a pussy full of his sperm as we speak. Go ahead, Matt," she said, turning to Matt's body. "Just make sure you hurry up. Supper won't wait for you." She turned and opened the door, looking back again. "And make sure you cum inside her. I'd rather you knock her up than your dad."

The moment the door closed, Matt jumped back into his own body, which was posed just before the ultimate thrust, one hand holding her hand away, the other pushing his cock head against her cum filled pussy. Lily just lay there, staring at the door where her mom had just given her brother permission to fuck her, a look of dazed shock on her face.

The look of shock disappeared in a moment, though, as Matt thrust his hips forward, sinking his virginal cock deep inside his twin sister's shaved pussy. Matt groaned in pleasure, pausing for just a moment as his pubic hair pressed against Lily's skin, relishing the feel of her pussy clenching against his cock, then pulled most of the way out, only to slam back inside her again. Thrust after thrust, he drove his cock inside her, not even looking as high as her face, his eyes sliding up and down her body, watching her breasts jiggle with each thrust, then down again to see his cock sliding in and out, and up again. If he had looked, he would have seen a look of helplessness on her face that grew with each thrust.

His inexperience betrayed him, and mere minutes after beginning to fuck Lily, Matt felt his orgasm crash over him. With a cry, Matt arched his back, driving his cock as deep into Lily as he could, spurt after spurt of cum washing inside her, mixing witth the load of cum their dad had already given her. Through all of it, Lily just lay there, staring up at her twin brother.

Matt collapsed onto her, his mouth instinctively latching onto her breast, suckling it, his tongue swirling around the sensittive nipple. He had never felt anything even approaching this bliss, and wondered if all his sexual encounters could possibly compare to this.

He also wondered if he actually felt that thrill of lust that seemed to race through his mom's body when she caught sight of his naked body. Maybe, just maybe, she was looking for a litttle side action like his dad had found with Lily.