He motioned the girls to stand in a line before him, the table stood between them, and with a clap of his hands, they duly obliged.
"Now girls; the titty-fuck is not something to fear. It is a thing of beauty, a wonderful, sensuous connection between man and tits." He walked over to Erica, "Now I can see why some of you may be embarrassed, nay even afraid of the concept. Take Erica here, her tits are small and ineffective, probably not even enough to wrap around a pencil. Of course she would feel strongly against the idea of a titty fuck class, it would be like taking Stevie Wonder clay-pigeon shooting.
"However, with a small change of perspective..." Marcelo placed a hand on each of Erica's breasts and to silent shock of all the girls, they began to grow. "If one has a good handful of tit to work with like you can see now then there is potentially something we can work with. However, if we keep going, we can create a rack that's something very special indeed. Something like... these."
By the time Marcelo's hands had released their hold on Erica's breasts, it wasn't so much a question of if her bra would ever fit again, but more to the fact would even her t-shirt ever fit again. Each golden globe seemed to float like they were in zero-gravity. Erica had never seen a pair of breasts like these even in magazines let alone on her person. She wanted to speak out, but her lips would not let her.
Marcelo held Erica by the shoulders and walked her round the table to face her three friends and stood behind her.
"With breasts like these," he continued, "a girl can soon become very eager to show her man exactly what she can do. For the purposes of this demonstration I have decided to also increase mammory-sensitivity over fifty fold so that now even the lightest stroke of the bosom like so..." he reached over her shoulder and ran his hand lightly over Erica's left breast, an action that succeeded in causing Erica's body to quiver in pleasure. "... can bring about a seriously agreeable reaction.
"Right now only Erica here knows exactly how good that felt, but I can assure you that the main thing going through her head right now is 'if the mere touch of a hand can feel that good then how good would it feel to have somebody really grab and squeeze them?'" he smiled before whispering into her ear: "I will not stop you voicing any pleasure you may feel from now on."
Then a moment later he reached round her with both hands and grabbed her as big a handful of her luscious mounds as he could manage, pinching and squeezing as he went. Erica immediately screamed in pleasure "Oh God! Please stop! ... No, don't stop, too good, God! So good..."
Marcelo continued to talk over Erica's moans. "What you see here is nothing compared to how good it will feel having a long hard shaft plunge deep into these big juicy melons. Something Erica will be realising right about now is that as good as the touch my hands may feel, she won't be able to cum without pumping her titties over something hard and cock-shaped. Erica's mind is now realising how wonderful the titty-fuck can be for herself as well as her potential partner as because of this, when I let go of her tits and give her back control of her body in a few seconds, she will not lash out at me or try to stop her pleasure. She will want nothing more than to feel one of these dildos rubbing between her tits. If anyone wishes to not believe me then just watch..."
Marcelo let go of Erica's tits and took a step back as she dove headfirst at one of the dildos, frantic to swallow it up in her greedy funbags. Her breath was short and her technique clumsy as Marcelo calmly approached her once more.
"You're too desperate." He told her, "You need to nurture the shaft, be a bit less aggressive and a little more rhythmic. Come on, count with me: one, two, one, two, one, two... a cock isn't a cocktail shaker Erica; just let your tits envelope the shaft naturally. Imagine you're trying to squeeze the last blob of toothpaste out of the tube."
The three girls could see that Erica was following Marcelo's advice. Her rampant assault on the dildo had transformed into a much mellower, measured milking of the rubber shaft. In fact, the girls were so fixated on watching Erica's progression into expert titty-fucker that they had not even noticed the changes that were happening to their own bodies until it was too late. By the time Erica entered the stages of her first of what would be many orgasms, the three spectators had already acquired their own matching sets of breasts and were mindlessly kneading them as they awaited their own opportunities to learn from Marcelo.
Marcelo's outward focus at least was still purely on Erica as he talked her through the motions of orgasm after orgasm after orgasm. As she endlessly pumped away at the dildo shaft, Marcelo casually unzipped his jeans and coaxed one her left hand onto his erect cock. On instinct, Erica's attention immediately changed and in seconds Marcelo's cock had disappeared into the orgy of breasts that had engulfed it. Marcelo continued to coach her along the way: "There we go, nice and easy. Remember this isn't a race. A slower orgasm is a better orgasm. Don't be afraid to give the tip a little suck every now and again, it won't bite."
Erica's tits jumped and jiggled as wave after wave of pleasure ripped through her body, but her body was insatiable; her breasts just kept coming back for more. Erica's three friends had now been massaging away at their own new gorgeous orbs for what had felt like hours and were now all equally desperate to titty-fuck a dildo for themselves. Taking his eye of Erica for a second Marcelo could see that they were ready and with a short hand motion the three friends were free. Each dived onto their respective shaft and began titty-fucking them for all they were worth and pretty soon everyone was riding the express train to cumsville.
Feeling his own orgasm nearing, Marcelo instructed Erica to up the tempo and throw caution to the wind. She willingly obliged and a minute later was rewarded with a shower of cum spraying over her waiting tits. The feel of hot cum hitting her skin triggered one final climax which felt like her very soul was on fire. She collapsed to the floor as if made of jelly, massaging the last of Marcelo's cum into her tits like lotion. She closed her eyes and soaked in the final ripples of pleasure.
A full ten minutes passed before Erica managed to fully catch her breath again and when she opened her eyes, her vision was filled with the sight of her three friends engaged in a tit-fucking orgy with a group of strangers. She gazed up to see Marcelo conducting affairs from the side of the room.
"Try to fuck both cocks in a more fluid motion." He instructed Jane, who was riding reverse cowgirl on one guy, whilst also swallowing up another guy's cock in her tits.
"Why don't you try a little kiss on the tip of the penis?" he suggested to Mona and Jessie who were treating another lucky guy to a double titty-fuck whilst their pussies buzzed with the sound of the vibrators that filled them.
As Erica's body stirred, it caught the attention once again of Marcelo who motioned over to three other men who were currently standing idle: "I think she's ready for you now my friends," he smiled, "I think as she has already learnt all there is to know about the titty-fuck, I will leave this round up to your imagination."
A mere hour or so earlier, a situation such of this would have struck fear into Erica's heart. However, thanks to the dedicated teaching techniques of the great Marcelo, Erica looked up at the three men with a smile on her face. Just like her three friends, she was eager and willing to learn as much as she could.
THE END
