Some back story first

Her name was Emma.

Emma explained to Ben that she had what was called a "PAP", or "Permanent Astral Projection", that she could control like a second invisible body. Her PAP was selectively tangible to people and objects, depending on what Emma wanted. But whatever touched Emma's projection, remotely affected her body.

They had decided to get together at a park bench the next day so she could explain yesterdays ghostly antics.

"So if you get creeped out by the whole invisible thing I can put some clothes on so at least you have something to look at."

"I mean, let's get to that bit later." Ben slumped back in the bench. The park terrain was covered with people. The thwack of a badminton punctuated the air every few seconds and frisbees busied the air like an uncoordinated aereal ****. "So you...your PAP is here now?"

"Yea, I'm sitting in the grass in front of you." Emma said. "It sounds less creepy if you just refer to it as 'me'. Since it basically is me. Kindof like an appendage actually." Jack felt a hand on his thigh, he watched the fabric on his jeans pinch and squeeze for a few seconds before he reached out and made contact with the invisible hand caressing him.

"And...you can feel me touching you now."

"Just as if you were touching this hand." She extended her visible hand outwards. "Ben you're taking this awfully well. You're actually the first non-PAP person I've told. Thought it would be more of a shock."

"Oh it's definitely a bit of a shock. But I'd be lying if I didn't see this as a huge turn on. Maybe that's why I seem kindof calm."

Emma laughed. "Yea, I guess with me you have the possibility of a three way every night."

"Yea...wait did you say non-PAP person? So there are others like you?"

"Oh yea, there's a whole society of us. It's not really that common, but there's enough of us to make a group out of."

Ben paused, thinking. He reached out to the invisible form next to him and felt the fabric of Emma's projected t shirt. Exploring downward he felt the hem of the shirt and pulled it up. Emma gasped behind him. He turned to see her shirt straining up over her stomach on its own. She glanced around, they were fairly isolated from other people, nobody would likely come across them. She glanced back at Ben.

"Feel like experimenting?" Her sexy smile egging him on. Butterlies exploded in Ben's stomach. Did he feel like experimenting? He lusted to experiment. He pulled the PAP's shirt up and watched Emma's shirt remotely respond. Her bra clad tits caught a moment, straining against the shirt, but suddenly dropped under her apparently self willed fabric. Emma gasped at the sudden movement and stared down at her chest. Ben released the fabric and watched Emma's shirt fall lifeless over her breasts. Slowly he reached down and squeezed, watching in awe as the negative space of his fingers appeared. She squirmed slightly, biting her lip.

"Huh..." His voice fluctuated with excitement. "That's weird. I thought I was grabbing you right tit."

"Hmm? Oh yea it...ugh... It's mirrored. Whatever you do t-to it, its the o-opposite."

Ben gawked at her."Wow, you really like tity play?" Emma opened her eyes, staring Ben down.

"Mmm boy, if only you knew. I do in real life but it feels kindof extra good this way." Ben felt a growing sense of mischief.

"Well...girl. How does this feel then?" He reached for the invisible jeans in front of him and began unbuttoning. Suddenly an invisible hand grabbed his wrist.

*Gasp* "Nononono we can't do that here." Another hand on his shoulder, a visible one. "Let's save that for another time." Her cheeks were flushed and Ben could see goosebumps on her forearm. Feeling a sense of more exciting things to come, Ben pulled back and leaned against the back of the bench. Taking a deep breath Emma pulled her shirt back down and smoothed the fabric over. "But let me just say, that was very exciting " she whispered.

"You're telling me." He scoffed. "Ok one last question. How far can you go? Like, can you board a plane and go to the other side of the world?"

"Awww, you really have no idea how astral projection works do you?" Ben blushed in his lack of knowledge. " Yes babe I can go anywhere. I used to do it pretty often when I was bored. It's a fun way to pass the time. Had a few interesting one night stands that way. It's amazing how willing people are when you convince them they're having sex with a ghost. No rules." A pressure gently sat in Ben's lap. "How would you like to have sex with a ghost?" An arm fell over his shoulder, a hand tustled his hair. Ben's face flushed red, the thud of his heart growing stronger in his chest. He glanced over, meeting her perfect blue eyes. He gasped, a hand slid up his thigh and teasingly caressed his cock.

"Let's go to my place." He said quickly. The invisible waist lifted off his lap and they both stood up just as a couple strode down the grass a few feet away from them. Ben shot a look up at the couple. "That was close. Imagine if they had walked by a couple minutes ago." Emma stared after the couple. A faint smile on her face. Suddenly the girl jumped.

"Ooh!" She turned, laughing to the man. "John! Not in public." The man laughed, visibly confused. Ben looked back at Emma, who met his gaze.

"What! She had a nice ass."