My character is also down for size play, though obviously just in the opposite direction. I like the idea of her being a fierce, towering, seemingly unstoppable warrior, but is actually one of the most submissive of the group. She's able to keep up a strong and boisterous face most of the time, but as soon as Isabella gets her cock inside her she completely crumples, so sensitive, either naturally or some trick of her magic, that Isabella is able to overwhelm and manhandle her during sex despite how much bigger and stronger she is. I imagine that can be tied back into the magic items as well.<br/><br/>I like the subsisting on cum idea, though I like the idea that rather than living purely off of cum alone, Isabella disallows MC from eating anything unless she's cum all over it first, and given how much of a big eater she is that'd mean quite a lot of sauce being produced. I also love the image of a rowdy barbarian swinging around a massive mug of cum while singing bar songs as if it were a tall beer, and happily chugging it down.<br/><br/>Also, since she's so much bigger than everyone else, I think it'd be hot/funny to see her regularly used as a bed when Isabella fucks the others. Like whenever in the wilds or dungeon and need a comfy spot she just orders MC to lay down and throws another slut down ontop of her. It'd also make it easy for MC to assist with all the lifting and strength requirements.<br/><br/>As for pregnancy, I do like the idea of Isabella wanting to use MC to breed especially strong and hardy children, but she turns out to be surprisingly difficult to impregnate, leaving her to become progressively more frustrated and aggressive in her attempts to violently slam a baby into her, her womb becoming a difficult challenge to overcome.<br/>