Thats a bit longer explanation. There is a walkthrough linked in the OP that gives some better explanation. You can also click on hint button, which gives more info.
Below is the initial training part of the walkthrough guide. Assuming you did everything before, second part ("Blowjob") describes the steps.
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Basic Training
• Visit T’Ris at 22:00 after her exercise and spy on her in the bathroom
• Do repair tasks (one per day) and a sequence trigger the morning after you did
three
• Visit T’Ris in the evening and chat with her to get some favours as
compensation for your efforts
• She blows you off and tells you to meditate
• Watch her shower via monitor at 22:00 (2 or 3 times) until you get the idea to
search your cabin for more explicit material
• Use the magazine you find on your bed between at 18:00 or 19:00
• If T’Ris has the map already, she will barge in and surprise you
• Chat with her the next evening, she agrees to support you with your urges
• Ask her for a favour (Handjob, 1 FP)
• The longer you do not get favours from her, the more you can “finish” (3 days
max).
Note: Click on each of the exclamation mark icons on her face (3 max for the
“mess”)
• Do the full finish (see point above) to get an achievement for T’Ris (clothed),
SLU up to 3 and a gallery entry
• Eventually, ask her to do the favour naked, she refuses, as your response to
her while she is clothed is ‘enough for the job'
• You get the idea to suppress your arousal using alcohol
• Buy a bottle of Drengarian Liquor at Shady
• Drink the liquor at 19:00 before visiting T’Ris for a handjob favour (drinking:
select liquor in inventory and then use on the blue glass next to your computer)
• As expected, you do not react at first and T’Ris undresses to elicit an adequate
response from you
• Visit her one or two times for naked handjobs and make a mess the second
time (big facial). You get the big facial nude gallery entry.
• T’Ris agrees to let you come in her mouth to avoid the mess next time
• Come into her mouth for two or three evenings and ask her for a blow job next
time, which T’Ris refuses
Blowjob
• Visit the bar, see Leila when she’s on duty and give her a huge tip (animation
reward from 5000+ Cr)
• After you have blown > 10,000 on Leila, T’Ris confronts you in the morning and
accuses you of squandering your credits
• She agrees to be available for blowjobs from thereon to ‘save money for the
mission’
• Visit T’Ris for a blowjob in the evening
• She shows average performance and has difficulties to go all the way
Page of 16 54• Buy a space dildo for her at Shady
• Let her practice for three days until she informs you on the bridge that her
exercises are complete and demands an opportunity for demonstration
• Visit her quarters for a demonstration event. She shows you her progress with
the dildo
• From next day onward you get the full blowjob ani and SLU up to 10
• Sex training quest triggers
• Angle 2 becomes available at SLU 10