The women in the group looked very suspicious, although the guys all just leered at Gretchen. When the women started to object, Petra started selling them on how their faces would have to be blurred, and it was all just good clean fun. One of the women started laughing, and Gretchen could tell she found the whole thing interesting. Soon Gretchen was sitting between her and another woman, pulling her dress up to her neck, and smiling as Petra took some pictures.
"Smile, okay all of you get in closer. Great. Smile. That's perfect." Petra snapped off three pictures.
Petra pulled Gretchen away from that group right as she got her dress down, and walked her through the crowd. Petra put her arm around Gretchen, and let her hand slide down until it was cupping her ass. Gretchen looked over at her friend and thought again how pretty she looked tonight. And at this point, Gretchen was so turned on from having been naked in front of a bunch of strangers that she didn't care that it was Petra's hand on her butt, she was just glad for the contact.
The next group Petra selected were a bunch of guys who looked like they had escaped the office and just hadn't made it home after happy hour. They were more than happy to pose with Gretchen. Soon she was sitting in between two of them, pulling her dress up again.
"That's great, now you two guys reach in and lift up her boobs. Yeah that's it, lift them up just a little, and now squeeze 'em a bit. Pefect." A guy on each side of her now had a breast in his hand, and one of them was brushing his thumb on her nipple. Gretchen could hardly hear anything over her heat beating. She was sure that her bald kitty was running like a faucet now, and everyone could see it as she sat with her dress around her neck.
Petra pulled her away from those guys and moved her along. This time her hand went under Gretchen's dress, lifting it back up a bit as she rested her hand on Gretchen's bare butt cheek. Gretchen just didn't care anymore as Petra selected another group. The photo sessions started to become a blur, as they moved around the beer garden. Soon it was just a big group around them; they had heard what she was doing, so Petra hardly needed to do much to find volunteers. Petra had her sit between some guys, putting one leg over the knee on the guy to the right, and the other over the knee of the guy to the left, opening her legs wide and letting everyone see how turned on she was. Between each shoot Petra would touch her, putting her hands in more and more intimate places. Sometimes she would help Gretchen get her dress back down, brushing her fingers across her nipples. Other times she would cup her hand on Gretchen's bare butt cheek as they walked. One time Petra was helping Gretchen pull up her dress, and Petra's fingers brushed her friend's slit. The feeling of Petra's finger bumping on Gretchen's clit was so intense it made her knees buckle. The whole thing had Gretchen absolutely delirious, she could barely stand. In the next few shots she got groped more and more often, mostly by guys, but Petra even got a girl to squeeze her boobs. Gretchen was scared that she might orgasm at any moment.
Suddenly there were two serious guys there, and even her eroticized state Gretchen could tell they didn't want her picture. They were bouncers, asking the girls to leave. Petra agreed immediately, and she put her hand on Gretchen's butt and guided her quickly out of the bar. Gretchen started to come down a little as they cleared the bar, but she was still incredibly aroused.
"Well we only got nine groups, so one to go vanilla girl. Wait, let's ask these girls," Petra had spotted three girls who were walking up to the bar. As she talked to them, one of them started laughing and asked if Petra was joking.
"Hey Gretchen, this time just give me the dress." Gretchen was horrified at the way Petra asked for her dress like she would just take it off in public all the time, but it thrilled her too. Slowly, she reached down, grabbed the hem, and pulled it off, leaving her completely naked on the street. The girls started laughing and Petra talked them into posing with Gretchen. Soon they were standing around her, with their hands wandering all over her as Petra directed them to grab her breasts for the picture. One of the girls even flashed one of her tits for the photo too. Petra gave Gretchen her dress back, said goodbye to the girls, and they started to walk to Petra's car.
"That's it, you did it," Petra said excitedly, "you are officially non-vanilla!" She hugged Gretchen, and then planted a kiss right on Gretchen's lips. Gretchen was surprised for a second, but she relaxed, and she even felt Petra suck on her lower lip as the kiss broke off.
"Let's go dancing!" Petra got her in the car and they headed for another club. As they drove, Petra's hand rested on Gretchen's thigh when she didn't need it for driving. Each time it left her leg, it came back to a higher spot on her thigh. Gretchen wasn't sure where this was going to lead, but she was enjoying the ride.
They got to a trendy dance club, and since they were two hot looking single girls, they got in right away. Petra led Gretchen down to the dance floor. As they danced together, Petra started doing things to get Gretchen to expose herself a little. She would hold her arms up in the while dancing, getting Gretchen to do the same, stretching the dress across her breasts. A couple times Petra squatted down, and when she came back up she ran her hands up Gretchen's thighs, pushing her dress up. She even got Gretchen to squat a couple times, which must have showed her shaved kitty to anyone who had looked. Petra would also dance behind her, then reach around her, bringing her arms up to brush against Gretchen's breasts. While they didn't do anything strictly illegal, their dancing was very erotic, and Gretchen was back close to her earlier highs.
The next dance was a slow dance, and Gretchen thought they would leave the floor. Petra surprised her by grabbing her and pulling her close. Gretchen stomach was all butterflies as she looked into the eyes of her long time friend. This was definitely going into uncharted territory, and Gretchen wasn't sure where it would come out. She felt Petra's hands slide down and cup both her ass cheeks as they slow danced, and Petra told her how impressed she was by what Gretchen had done over the last ten days, and how hot it made Petra. Soon Petra had her dress hiked up above her hips, and was massaging her bare ass right on the dance floor. Gretchen was vaguely aware that people were watching them, but all she could do is look into Petra's dark brown eyes. Suddenly Petra twirled her, and then was behind her, hugging her whole body close to Gretchen's backside. Petra's hands continued to roam all over her friend's body, exposing more and more. The dress was soon up around Gretchen's neck, and although she realized that people at the club could see everything, she just didn't care. Petra pinched Gretchen's exposed nipples, and ran her hands down between Gretchen's legs, exploring her kitty. Petra's fingers slid back and forth along Gretchen's wet and swollen silt, and slowly circled her clit. Gretchen moaned and ground her ass back against her friend's hips. Soon Gretchen felt Petra push the dress up, and she helped her pull the dress over her head and off one arm. The dress now hung just around Gretchen's left forearm.