Just from the look in her eyes

“Let me guess, you want to test it out don’t you?” you said, knowing full well what she wanted.

“That obvious huh?” she admitted.

“I’d like to think I know you better than anyone else, If I do say so myself” you replied with a smug grin.

“Oh really? If you know me so well then what am I thinking right now?” Emma asked, challenging you to guess her thoughts.

“You’re thinking that… your active effect would have been so much better if you didn’t have to be naked for it to work” you declared. Emma was about to immediately make fun of you if you had gotten the wrong answer but from her silence and her pouting expression, you had hit the nail on the head.

“Lucky guess” she mumbled, “I bet you're thinking about me stripping naked aren't you?”

“Touche” you replied.

You were both left grinning at the exchange but silence filled the room as you considered the upcoming ‘test’

“I could leave and activate it then if you would prefer?” you responded, giving her a less embarrassing option.

“No, I’d prefer it if you were here. Plus I’d have no way of knowing when you actually activated it. I’m not saying you would lie to me, it's just I’d prefer to see it myself given what I'm gonna do.” she reasoned. You understood her caution considering she would be the one risking everything so you didn't take any offence to what she said.

“That's fine. If you're sure you want to do it then I could distract Grace before you come down?” you asked. Emma thought about it once again and shook her head.

“No, I think it's best if I’m naked before we start the effect. It said clothes cancel the effect and if I’ve still got something on when you're downstairs and can't see me, then it could fail.” she replied with a sigh. “I was hoping the first time you see me undress would be a bit more romantic than this”

“Just think of it this way, It’s gonna be a lot easier for you to sneak around either of our houses after this and you can watch as many of me and my subjects as you want”

That seemed to boost her confidence as she stood up facing away from you and grabbed the hem of her tshirt before lifting it over her head and then unbuttoning her denim shorts to let them fall to the ground. That left her standing there in just a matching set of white panties and a bra. She turned to look in your direction as if waiting for a reaction to see you staring up at her. You could see her confidence was fading as she seemed to tense up so you decided to man up and help her out.

You got up from where you were sitting and went right up next to her. She looked at you hesitantly before you wrapped your arms around her in a hug.

“You look beautiful you know that” you whispered right next to her ear. She seemed to relax at the comment so you brought your arms up to the middle of her back and attempted to undo her bra. Without being able to see the strap, it took you a few moments to feel around before finally unhooking it, much to Emma's amusement.

Loosening your hug, you pulled back and stared into her eyes as her cleavage pressed against your chest. You drew close and kissed her as she pulled the straps down her shoulders. As you kissed, you brought your hands lower down her back and into her panties before groping her ass. As you squeezed and played with her flesh you felt the panties slip from her leg and fall before Emma carefully stepped out of them. That left her in just her bra which was now wedged between the two of you. From what you could get your hands on, you could tell she wasn't as ridiculously curvy as her mom but she had definitely inherited her genes.

Neither of you wanted to part as you made out but Emma **** herself to stop before you both got too distracted. You both stood there with heavy breathing in an attempt to calm down.

“This romantic enough?” you said, squeezing her ass as you spoke.

“It’s not exactly what I had in mind but it's good enough” she teased.

After a little more groping, you reluctantly stopped and separated, leaving Emma with **** but to stand there in all her naked glory as you stared at her once again. You really wanted to start playing with her again once you saw her shyly attempt to hide her pussy and nipples from your view but she wiggled her finger at you in an attempt to stop you.

“Come on mister, you can play with me another day but we need to head downstairs and send you home before mom starts to worry” she replied, stopping you in your tracks. With a sigh, you got your phone from your pocket and loaded up her profile. Within both of your views, you activated her effect so that you could both witness the change.

Activating ‘Invisigirl’

From your perspective, nothing seemed to change but Emma seemed to notice something as she started to run her hands across her skin. Just as you were about to ask her what she was doing, she opened her door and motioned you out of the room.

“Quick, quick. I really wanna test this.” she said following you as you went down the hallway.

As instructed, you rushed through the house and down the stairs with Emma hot on your heels as she attempted to hide behind you just in case the effect didn't work. You reached the bottom and found Grace as she was sitting in the living room watching TV. The noise seemed to drown your approach out as you walked inside and made your presence known.

Grace stayed out of the room as you entered and you went to sit down next to grace while you waited.

“Emma’s still upstairs but I was about to head home and realised I don't have your number. You don’t need to give it if you don't want but there could be a chance one of us needs to reschedule.” you replied, giving yourself another excuse to talk with her and hopefully a way to get her active working.

“Oh sure, you got something to write it down with?” she asked, grabbing her phone from the table next to her.

“Ah right you didn't know, I managed to convince my Mom that…” you said starting to explain when you noticed Emma had entered the room. You did your best to carry on talking and went through how you managed to get a phone as Emma walked through the room and into what would be Grace’s line of sight.