They can. It&#x27;s just far less likely.<p><a href="http:&#x2F;&#x2F;www.cdc.gov&#x2F;hiv&#x2F;basics&#x2F;statistics.html" rel="nofollow">http:&#x2F;&#x2F;www.cdc.gov&#x2F;hiv&#x2F;basics&#x2F;statistics.html</a><p>Simple division (63% of HIV infections &#x2F; 2% of population) &#x2F; (25% of HIV infections &#x2F; 98% of population) suggests gay sex is about 120x as risky as straight sex.