That's Miss Fatty To You (Book 1 in the Undesirable Trilogy)

"Lil, what have you done to me?" He whispered to me in a husky voice next to my ear. His breath tickled my skin and made goose bumbs rise all over me. "I-I didn't do anything." I said, the heat of his near my body was getting to my head. "Yes, you have." He said and kissed the crook of my neck gently which sent shiver...

Tuch her and I'll personaly kill you ( a fat girl romance)

Alexandra, she's not your average teenage girl. She's been bullied her whole life because she's plus sized. She keeps to herself, not wanting anybody to figure out her secrets, when this new guy comes to her school and turns her life upside down.