Is not being lesbian a dysfunction?

The ScienceDaily reported that teens who are lesbian, gay or bisexual might be at a higher risk of severe mental disorders as a result of the stress associated with the actuality or possibility of rejection and/or victimisation.

This is because the stress disrupts hormone responses, causing the stress hormone cortisol to increase.

I was wondering if the opposite could happen? I mean, if you’re a straight girl and you’re constantly under pressure from the media or your loved one to have a lesbian experience? One cannot enjoy a single pornographic film without gratuitous female affection. Even in mainstream media, women are constantly under pressure to be attracted to other women.

Is not being attracted to another woman also considered a dysfunction?

Just a question…what do you think?