The welcome physical stimulation of an erogenous zone or acts of foreplay can result in arousal, especially if it is accompanied with the anticipation of imminent sexual activity.
Sexual arousal may be assisted by a romantic setting, music or other soothing situation.
Erotic stimuli may originate from a source unrelated to the object of subsequent sexual interest.
Given the right context, these may lead to the person desiring physical contact, including kissing, cuddling, and petting of an erogenous zone.
This may in turn make the person desire direct sexual stimulation of the breasts, nipples, buttocks and/or genitals, and further sexual activity.
Scientists from Mc Gill University Health Centre in Montreal (in Canada) used the method of thermal imaging to record baseline temperature change in genital area to define the time necessary for sexual arousal.
Researchers studied the time required for an individual to reach the peak of sexual arousal while watching sexually explicit movies or pictures and came to the conclusion that on average women and men took almost the same time for sexual arousal — around 10 minutes.
Depending on the situation, a person can be sexually aroused by a variety of factors, both physical and mental.