They do the obvious...testing what´s on their mind.

"Could it really be?" Sandra asked again.

"There´s only one way to find out." Julia smirked again looking towards the moaning.

"Wait what? You don´t really..."

"Yes of course. Why not? If this thing really works then we can do anything." Julia said quite loud enough for everyone to hear.

"Not so loud! You can´t do this." Sandra said in return.

"Oh come on. It doesn´t seem like she actually cares what we say right now." Julia said while opening the door completely. The well time loud moan implied that Gabriella indeed did seem quite focused on different things.

"And think about it. If this thing really works, then we can just test it on her right now and then use it later to make her forget. She will just think of it as a weird wet dream." Julia argued.

Sandra gave in to her curiosity.

"Ok, but don't go too far. Just some quick tests."

"Alright, alright." Julia said, again with her eyes rolling.

"Ok first some small things to see how it actually works. Could it really be this simple?"

Julia thought about it for a moment and then said: "I wish she would get on top of the bed, point her ass to us and lay the head on the bed." Again the crystal shined, making Julia almost unable to contain her happiness.

Gabriella, who up until this point lay on the edge of the bed and facing sideways to the door, suddenly got up, never stopping her almost furious masturbation. She got up on the bed on her knees and laid her head back on the bed. Julia could not contain her enormous grin anymore once she saw Sandra´s mother ass facing the door.

The hands still doing everything they could to get her off. The left hand massaging her breast and the right one between her legs. The glistening pussy accompanied by the now slightly muffled moaning was almost too good to be true. It actually was too good to be true.

"I wish she would use her left hand to give her asshole a nice and slow fingerfuck." Julia said. Sandra saw the crystal glow again and then mesmerized by her curiosity watched her mother's left hand slowly going towards her ass. Once arriving, Gabriella's hand now only had her middle finger out and lined it up with her rosebud. And then in one swift motion the finger entered and a loud and long moan escaped her mother.

Julia sensed that she was close to orgasming, so she waited with her next wish for the perfect timing. When she saw her raise her head looking forward Julia quickly said "I wish she would freeze!". And just like that, in the middle of another long moan and her rewarding orgasm, she was stuck.

"Oh my god, this is amazing. I can´t believe it." Julia said and started walking into the bedroom. This actually kicked Sandra out of her almost trance-like state.

"Wait! What are you doing?" She asked trying to catch up.

"Just testing, like we said." She walked closer to the mothers behind. "Wow, she 2 fingers up her pussy and one up her ass. Your mother really is a dog in heat." Julia said grabbing a handful of that firm ass.

"Well you basically made her into one." Sandra said.

"Well I sure as hell did not make her enjoy it like this." Julia argued, pointing at the mothers face. It showed pure bliss with the mouth hanging wide open cause she was in the middle of that huge moan.

Funnily enough though, her eyes were also wide open. Julia wondered if she still realized what happened around her and if she could see her. Julia took Gabriella's head into her hands and said "I really hope that your brain did not freeze as well and that you realize what's happening. I think you really deserve that for being so nasty towards me all the time." She added a nice smack on Gabriella's ass and then got another wicked idea. She grabbed her left hand, which was almost completely out right now, and in a slow motion shoved the finger completely back in. She finished by giving those perfect tits nipples a nice pinch.

Sandra, seeing this humiliating look on her mother's face and the insane pleasure Julia got from her "testing", made her grow really uncomfortable with this whole situation and finally said:

"I...I think that´s enough." she stammered.

"Stop this now" she followed up a little more dominant.

Julia turned towards her friend with one eyebrow raised and a quite pissed look. Sandra looked towards the floor and held her breath.

"Jeez you really have no guts. Ok, ok." she said taking a step back from her test subject. Sandra looked a little more at ease now, breathing out quite heavily. "Though I really wish you would just let me play with her until we leave" Julia finished up only to realize what she just said. Watching down between her breasts and then at the look of her friends face was enough to understand. Sandra, just having calmed down, had a short look of terror in her face after she heard Julia's words only to shake it off with a simple "OK".