Well, first of all, it should be about respect and communication. You need to be extra careful about her feelings. Every person is different, but one thing is for sure, it should be a consensual and comfortable experience for both parties. And don't focus too much on body type, but rather on the connection you have with her.
Most of these so - called stories are just stereotypes. Everyone's sexual experience is unique and should not be generalized based on body type. A fat girl can be just as confident, loving, and passionate as anyone else in a relationship, and reducing it to a specific 'type' of story is unfair.
First, create a relaxing environment. Dim the lights, play some soft music. Then, during the process, be very communicative. Ask if she's okay. And don't be too rough. Since she may have a different body shape, be careful not to cause any discomfort. Also, show your affection not just physically but also verbally. Let her know she's special.
Literature often aims to convey positive values. So while there may be some works that include characters with larger body sizes in their relationship stories, it's not in the form of the kind of 'fat sex stories' you might be thinking in a salacious way. For instance, there could be a story where a plus - sized person overcomes self - doubt in a relationship and discovers true love through mutual understanding and respect.
One reason could be a change in diet. Maybe she started eating more junk foods like burgers and fries which are high in calories. Another could be a lack of exercise. If she was previously active but then became sedentary, her body would start to store more fat. Also, hormonal changes can play a role. For example, some medical conditions that affect hormones can lead to increased appetite and weight gain.
One possible reason for a girl to become fat in college could be the change in diet. In college, there are often many dining options like cafeterias with a wide variety of food, including junk food. If a girl is not careful about her choices and indulges in too much fried food, sugary snacks, and large portions, she may gain weight. For example, a girl might start having pizza every day instead of a balanced meal.
One story could be about a girl who started overeating due to stress. She had a lot of pressure at school with exams and assignments. Instead of dealing with the stress in a healthy way like exercise or relaxation, she turned to junk food. Every day she would snack on chips, cookies, and drink sugary sodas. As a result, she gradually gained weight.