We are glad that you are interested in learning more about the study. In order for us to determine whether you are eligible to participate, please answer the following questions.
Q.1 1. Are you over the age of 18?
37= Yes
1= No

Q.2 2. Have you been in a heterosexual, monogamous relationship for a period of more than three months?
37= Yes
1= No

Q.3 3. Do you have an email address where you can be reached daily?
37= Yes
1= No

Q.4 4. Do you have genital herpes or any existing infections, sores, irritation or scrapes, cuts, or areas that burn or itch on the penis, vagina, or genital area?
1= Yes
37= No

Q.5 5. Are you willing to respond to self-administered questionnaires on sexual history and practices?
37= Yes
1= No

Q.6 6. Are you allergic or sensitive to silicone?
1= Yes
37= No

Q.7 7. Do you have genital piercings?
1= Yes
37= No

Q.8 8. Are you or your partner currently pregnant or nursing?
1= Yes
37= No

Q.9 9. Are you willing to use vibrators that are provided by the researchers?
37= Yes
1= No

Q.10 10. Do you have a history of epilepsy or seizures?
1= Yes
37= No