Do you have anyone that you would like to engage with sexually?
I think it would have been better if you had asked the question in regards to someone you liked..rather than a 'when' question...Not that it can't be answered, its just makes the reading of the chart more complicated...
i will look at both 5th and 7th houses... 5th for romance, 7th is more traditional... But also Venus and Sun, which are female and male sexuality respectively.
7th ruler Mercury is about to conjunct Jupiter (your ruler). I think you may meet someone pretty soon or you already have sights on someone and things are not going good. the Sqaure shows some obstacles. And both are in fixed signs showing progress to be quite a slow one. You are not a very assertive person by the looks of it, and it takes you time to decide and make a move. The person (Mercury) you have hots for, is the same although a bit swifter...
Moon the 5th ruler just trined Jupiter (you) and will square Mars. This shows that you probably did have some opportunity in the past but you might have let it slip away...and this causes frustration. Things haven't gone smooth with that person.
Venus and Sun will conjunct in about 12 degrees. This could be 12 weeks when a woman will aproach you sexually. But because of Jupiter being in a slow sign, I think it could be more like 12 months...Venus will also trine the ASC in about 7 degrees and sextile Jupiter in 4 degrees, and that might be when you meet the person (4-7 weeks/months). Venus will also have to square Saturn before coming closer to Sun and that might be why it is 12 months for a sexual union rather than 12 weeks...
There is mutual reception between Venus and Jupiter, a very positive sign of you meeting a person in about 4 weeks or could be months, but I don't like the fact that Moon is square Mars...that implies some frustration...maybe some issue here you need to deal with...
Moon will sextile Sun as last aspect and it happen right at the 7th cusp to5th house, so its positive indication for things to move forward here... So all in all within the next 6-12 months you may get your wish...
hope this helps!
Let me know how this goes....