Andrea's head began to swim as she knelt in the primordial pool.   Her vision blurred as she watch the creature pursue her shipmate.  Still, she was unable to muster the strength to rise from her position out of the muck.   As she weakly tried to rise from her knees, a large bead of sweat fell from her face and grazed her nipple.  Even that slight graze was enough to send an orgasmic shock wave running through her body.  She dropped down to her hands and knees, letting out a small cry.   "My god.....what is happening to me," she thought.<br/><br/>She manage to rise back to her knees, and took a moment to look down and examine herself.   Her breasts were very swollen, her nipples rock hard and deep red against her flush skin.   Beyond them, her stomach was distended to the size of a basketball.   Anyone seeing her now would think she was heavily pregnant, almost full term even.  She also noticed that as hot as the cave was, she felt on fire now.  The only cool part of her body was her lower extremities lying beneath the water of the pool.   Almost without though, she lowered herself down to sit down in the pool...letting the water rise up over her belly.   She sunk down even further, and almost passed out from the wave of pleasure as the cool water passed over her sensitive nipples.   All thoughts of her stricken friend flew from her mind.<br/>